Ontario Tax Income Calculator
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Reviewed by Calculator Editorial Team
Use this Ontario tax income calculator to estimate your provincial income tax. The calculator follows the current Ontario tax brackets and provides a breakdown of your tax liability. This tool is designed for individuals and small businesses to understand their tax obligations in Ontario.
How to Use This Calculator
Enter your total taxable income in the calculator below. The calculator will automatically compute your Ontario provincial income tax based on the current tax brackets. You can also select your filing status to get an accurate estimate.
Note
This calculator provides an estimate. For exact tax calculations, consult a tax professional or use official government tax forms.
How Ontario Taxes Are Calculated
Ontario uses a progressive tax system where higher income brackets are taxed at higher rates. The tax brackets for 2023 are as follows:
| Taxable Income | Tax Rate |
|---|---|
| $0 - $45,142 | 5.05% |
| $45,142.01 - $90,287 | 9.15% |
| $90,287.01 - $150,000 | 11.16% |
| $150,000.01 - $220,000 | 12.16% |
| Over $220,000 | 13.16% |
Formula Used
The Ontario provincial income tax is calculated by applying the progressive tax rates to your taxable income. The formula is:
Tax = (Income × Rate) + (Remaining Income × Next Rate) + ...
Worked Example
Let's calculate the Ontario tax for someone earning $100,000 with a single filing status.
- First $45,142 at 5.05%: $45,142 × 0.0505 = $2,284.23
- Next $44,995 ($90,287 - $45,142) at 9.15%: $44,995 × 0.0915 = $4,109.32
- Remaining $10,000 ($100,000 - $90,287) at 11.16%: $10,000 × 0.1116 = $1,116.00
Total Ontario tax: $2,284.23 + $4,109.32 + $1,116.00 = $7,509.55
Frequently Asked Questions
How often should I use this calculator?
You can use this calculator whenever you need to estimate your Ontario provincial income tax. It's especially useful for annual tax planning or when your income changes significantly.
Does this calculator include federal taxes?
No, this calculator only calculates Ontario provincial income tax. For a complete tax estimate, you should also consider federal taxes and other deductions.
Are the tax brackets up to date?
Yes, the tax brackets are based on the 2023 Ontario tax rates. For the most current information, check the official Ontario government website.